Axle bearing lubrication device



Feb. 11-, 1936.- w. LEHMANN 2,030,644

AXLE BEARING LUBRICATION DEVICE Filed May 9, 1934 Patented Feb. 11, 1936UNITED STATES PATENT OFFICE AXLE BEARING LUBRICATION DEVICE ApplicationMay 9, 1934, Serial No. 724,805 In Germany March 17, 1934 1 Claim.

Oil delivery plates for axle bearing lubrication means of elongatedshape are known, the side edges of which are arranged in radialdirection towards the pivotal point of the delivery rod.

l The amount of oil delivered, however, is unsatisfactory, especially inthe middle range of speed of 30-80 revolutions. Also, delivery platesare known, the surfaces of which are provided with ribs parallel to thethrowing edges in order to 10 delay the throwing off of the oil athigher speeds by producing an artificially lengthened path of movementof the oil.

The arrangement according to the invention will combine. such a ribarrangement with latera1 running off edges arranged at about 60 to theaxis in such a manner that the ribs at their ends near these sharpenedrunning off edges are bent over so as to extend in the same way as theupper corners of the plate and open into the 20 running ofi edgesforming points in their lower part. At the same time the running offedges at their upper ends are to be connected with the throwing edge ofthe plate over the strongly rounded corners.

25 The object of this arrangement is, especially in the lower and middlespeed range of.15-90 revolutions, to cause the oil carried along withthe plate in the oil bath to be given up at the catch troughs bydropping off in a more com- 30 plete manner than in the known plates.

The drawing illustrates a constructional example of the arrangementaccording to the invention. Fig. 1 being an elevation of the deliveryplate from its broad side and Fig. 2 a section through the deliveryplate in the plane of axis.

In the figures a indicates the ribs, b their lat- 5 eral bends, c thethrowing edge of the plate, at r the upper strongly rounded corners, ethe lateral running off edges and their lower dropping points.

The improved delivery action of this form of plate depends on the factthat the oil carried along by the throwing edges and the channelsbetween the ribs in the oil bath runs during the upward rotation of theplate as far as the bends on the downwardly directed corner and is therediverted in order, during the passage of the plate over the trough, tobe given up at the sharpened rear running off edge in the form of atrain of drops on to the bearing members.

What I claim is:

An oil delivery plate of elongated shape, for axle bearing lubricatingmeans, more particularly for rail vehicles, having ribs on its surface,a throwing edge, and running off edges which are inclined at an angle ofabout 60 to the axis of symmetry of the plate and are sharpened and runout into a dripping point, the throwing edge being curved at its ends tomeet the running ofi edges, forming rounded upper corners of the plate,and the ribsalso beingcurved at their ends like the throwing edge.

WALTER LEHMANN.

